This paper focuses on robust wind disturbance rejection for nonlinear quadrotor models. By leveraging unknown observer theory, it proposes a dynamic filter that, using sensors already on-board the aircraft, can estimate in real-time gust signals three dimensions. The is then treated as input to PD controller quick and flight pathway presence of disturbances. With this scheme, be precisely estim...

Accurate motion interval segmentation is the basic and crucial step in advanced human perception based on WiFi signals. However, previous works have rarely considered duration, which one of important parameters for complete description motion. On this basis, we deeply investigate properties CSI ratio from perspective Mobius transformation construct a novel indicator using its complementary real...